A family of Microsoft presentation graphics products that offer tools for creating presentations and adding graphic effects like multimedia objects and special effects with text.
My slides are 90%+ annotations with the Apple Pencil. I use these for math lessons. I’ve not seen a difference btw large and small files, as all of my existing files are large (200+ pages).
I’ve converted some to Keynote. While the conversion is easy and most everything goes across the apps without issue, all of the annotations transfer as objects and not individual pixels. So you cannot just edit portions of what is written. For me, this is a big drawback.
I’ve converted to .pdf, but I lose more detail and ease of presentation and real-time annotations are diminished.
If I start from scratch (which would really cause a lot of pain and agony), I would use Keynote.
Google slides is terrible!